mirror of https://github.com/davisking/dlib.git
85 lines
2.1 KiB
C++
85 lines
2.1 KiB
C++
// The contents of this file are in the public domain. See LICENSE_FOR_EXAMPLE_PROGRAMS.txt
|
|
/*
|
|
|
|
This is an example illustrating the use of the server_iostream object from
|
|
the dlib C++ Library.
|
|
|
|
This is a simple echo server. It listens on port 1234 for incoming
|
|
connections and just echos back any text it receives, but in upper case. So
|
|
basically it is the same as the sockets_ex.cpp example program except it
|
|
uses iostreams.
|
|
|
|
To test it out you can just open a command prompt and type:
|
|
telnet localhost 1234
|
|
|
|
Then you can type away.
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#include <dlib/server.h>
|
|
#include <iostream>
|
|
|
|
using namespace dlib;
|
|
using namespace std;
|
|
|
|
|
|
|
|
class serv : public server_iostream
|
|
{
|
|
|
|
void on_connect (
|
|
std::istream& in,
|
|
std::ostream& out,
|
|
const std::string& foreign_ip,
|
|
const std::string& local_ip,
|
|
unsigned short foreign_port,
|
|
unsigned short local_port,
|
|
uint64 connection_id
|
|
)
|
|
{
|
|
// The details of the connection are contained in the last few arguments to
|
|
// on_connect(). For more information, see the documentation for the
|
|
// server_iostream. However, the main arguments of interest are the two streams.
|
|
// Here we also print the IP address of the remote machine.
|
|
cout << "Got a connection from " << foreign_ip << endl;
|
|
|
|
// Loop until we hit the end of the stream. This happens when the connection
|
|
// terminates.
|
|
while (in.peek() != EOF)
|
|
{
|
|
// get the next character from the client
|
|
char ch = in.get();
|
|
|
|
// now echo it back to them
|
|
out << (char)toupper(ch);
|
|
}
|
|
}
|
|
|
|
};
|
|
|
|
|
|
int main()
|
|
{
|
|
try
|
|
{
|
|
serv our_server;
|
|
|
|
// set up the server object we have made
|
|
our_server.set_listening_port(1234);
|
|
// Tell the server to begin accepting connections.
|
|
our_server.start_async();
|
|
|
|
cout << "Press enter to end this program" << endl;
|
|
cin.get();
|
|
}
|
|
catch (exception& e)
|
|
{
|
|
cout << e.what() << endl;
|
|
}
|
|
}
|
|
|
|
|